Improvement in lubricators



, lehem,

I ment -in the chamber.

UNITED STATES' PATENT OFFICE.,

tonunr Ross, orV nn'rI-ILENEM, PENNSYLVANIA.

y IMPRQVEMENT 1N LUBmcAToas.

Specification forming part of Letters Patent No. 111,785, dated March 1, I1864.

To @ZZ whom it may 'concern/ Be it known that I, ROBERT Ross, of Beth- Northampton county, Pennsylvania, have invented an Improved Oil-Cup g and I -do hereby` declare the following to be a full, clear, and exact description of the same,ref erence being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention consists of an oil-cup constructedI in the peculiar manner fully described hereinafter, so that the oil may be admitted t'o a reservoir, and discharged from the same to the object to be lubricated by the manipulation of a single handle, and without the aid lof the complex system ot' stop-cocks used in connection' with ordinary oil-cups.

In order to enable others skilled inthe art toniake and use my invention, I will now proceed to describe its construction and operation.

0n reference to the accompanying drawings, which form a' part of this specification, Figure 1 is a vertical section of my improved oil-cup Fig. 2, a sectional plan on the line 1 2, Fig. l; and Fig. 3, a sectional plan on the v line 3 f1, Fig. 1, the cup being in thisinstanee inverted.

m Similar letters refer to si m ilarparts tllrou ghout the several views. l

'1 -lie body of the cup consists of a' chamber 'i or r:4 servoir, A, whichhas at the: top' a hollow projection, a, and. at the'bottoln a hollow projection, b. To' the' lower projection, b, is screwed the branch B, in which is a chamber for the reception of a hollowblock, G, the

*latter resting on the spiral spring c and flttin g snugly', but so as to have a free vertical moveas requires frequent lubrication.- Into the projection a is screwed. the hollow spindle D,

and lonto the saine projection is 'screwed a cap, E, forming a gland or stuffing-box of a character well known to those familiar with the construction of ordinary oil-cups.

The screw-spindle D is furnished with a -In the lower endoftlie' jbranch B is an opening, d, this end of -the branclrzbei-ng secured to the cylinder, steamchcst,'or such other part of a steamengne' tion 6,' from the center of which a tube, f, projects into the hollow spindle D. Openings g are madein,the sides ofthe cup below the partition for a purpose described hereinafter.

The lower end of the spindle D is ground,

so as to form a seat for the'A end h ot' the rod II, the lower end of which is enlarged, and

rests upon the block C, the enlarged end being formed into a valve, h', which is ground l to a seat formed on the hollow projection b, the diameter of the rod being ysomewhat smaller than that of' the opening in the said -projection I).

Onl the under side of the valve h is a small chamber, from which radiate several grooves, i, best observed on'ret'erence to Fig. 3.

When the reservoir A has to bereplenished with oil, the handle F is so turned as to unserew the spindle D to a limited extent, thereby elevating the lower end of the spindle free from the end of the rod H, and permitting the -oil.which has passed from the receptical a:

and through the tube Finto the interior of the spindle D, to How through the annular space between the end of the spindle and rodH into the reservoir A. Before the.oil could gain this access to the reservoir, however, the

valve'h on the lower end of the rod H had closed to its scat, for as' the hollow spindle D rises the rod H must follow, owing to the action ofthe spiral spring on the block C. As

the oil ilows into the reservoir,\therefore, in

fact before the oil begins to tlow into the res# ervoir, the steam is excluded'therefrom by the valve h. When the oil has to be discharged from the reservoir, the handle F is turned in a contrary direction, so as to lower the spindle D, which now bears upon the top of the rod 1-I, and effectual] y bars the passage of the oil to the reservoir, the turning of the handle F being continued, so as to depress the rod H and remove the valvleJ hi1 from its seat, when the oil will pass freely through the annular 'space between the rod Hand the branch B;

thence along the grooves i i through the opening in the blocli (l, and thence through the opening d -into the cylinder, steam-chest, or p other part of the engine to be lubricated.

It will now be seen without further description that by simply moving the .handle F iirst'in one direction and'then in another the oil is first admitted to and then discharged from the reservoir-nn operation which in ordinary oil-cups could only be accomplished by a complicated and costly system` of stop cocks.

The object of the chamber y and openings g is to permit the free egress of air, upward from the interior of the hollow spindlel) and reservoir A through the annular space between the interior of the spindle D end tube f, and thereby insure the free ilow of oil into the reservoir.

I claim as my inventionand desireto secure by Letters latent- 1. A reservoir, A, hollow screw-spindle l), rod H, and any suitable spring for raising' said rod, and the valve herein described, the whole being constructed and arranged, substantially as set forth, for admitting oil to and discharging it from the reservoir by the sim ,ple turning of the said spindle D.

2. The cup G, with its oil-receptacle air- 'chambergh and tube f, constructed and applied to the hollow spindle D, substantially as and for the purpose herein set forth.

3. The combination of the hollow block (l,

l spring M, and grooves i. at the bottom of the rod H. A

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ROBERT ROSS.

' Witnesses:

JAMES T. Bouman',

M. A. Bouman. 

